./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0740.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0740.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 755a3cc6a0c274616c745647082171c18148354d ...................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0740.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 755a3cc6a0c274616c745647082171c18148354d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:34:28,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:34:28,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:34:28,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:34:28,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:34:28,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:34:28,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:34:28,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:34:28,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:34:28,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:34:28,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:34:28,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:34:28,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:34:28,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:34:28,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:34:28,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:34:28,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:34:28,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:34:28,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:34:28,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:34:28,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:34:28,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:34:28,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:34:28,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:34:28,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:34:28,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:34:28,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:34:28,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:34:28,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:34:28,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:34:28,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:34:28,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:34:28,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:34:28,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:34:28,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:34:28,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:34:28,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:34:28,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:34:28,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:34:28,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:34:28,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:34:28,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:34:28,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:34:28,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:34:28,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:34:28,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:34:28,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:34:28,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:34:28,484 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:34:28,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:34:28,484 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:34:28,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:34:28,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:34:28,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:34:28,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:34:28,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:34:28,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:34:28,486 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:34:28,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:34:28,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:34:28,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:34:28,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:34:28,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:34:28,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:34:28,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:34:28,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:34:28,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:34:28,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:34:28,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:34:28,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:34:28,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:34:28,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:34:28,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 755a3cc6a0c274616c745647082171c18148354d [2021-08-26 01:34:28,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:34:28,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:34:28,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:34:28,747 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:34:28,748 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:34:28,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0740.c [2021-08-26 01:34:28,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa02f7ef6/0f33d9fa675944f48f9dd6a8bb4cc03a/FLAGe9269d414 [2021-08-26 01:34:29,243 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:34:29,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0740.c [2021-08-26 01:34:29,251 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa02f7ef6/0f33d9fa675944f48f9dd6a8bb4cc03a/FLAGe9269d414 [2021-08-26 01:34:29,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa02f7ef6/0f33d9fa675944f48f9dd6a8bb4cc03a [2021-08-26 01:34:29,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:34:29,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:34:29,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:34:29,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:34:29,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:34:29,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed8ffee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29, skipping insertion in model container [2021-08-26 01:34:29,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:34:29,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:34:29,465 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0740.c[3071,3084] [2021-08-26 01:34:29,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:34:29,478 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:34:29,501 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0740.c[3071,3084] [2021-08-26 01:34:29,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:34:29,511 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:34:29,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29 WrapperNode [2021-08-26 01:34:29,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:34:29,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:34:29,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:34:29,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:34:29,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:34:29,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:34:29,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:34:29,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:34:29,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:34:29,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:34:29,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:34:29,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:34:29,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (1/1) ... [2021-08-26 01:34:29,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:34:29,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:34:29,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:34:29,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:34:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 01:34:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:34:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 01:34:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 01:34:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 01:34:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:34:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:34:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 01:34:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:34:30,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:34:30,053 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-26 01:34:30,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:30 BoogieIcfgContainer [2021-08-26 01:34:30,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:34:30,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:34:30,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:34:30,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:34:30,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:34:29" (1/3) ... [2021-08-26 01:34:30,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5291e16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:34:30, skipping insertion in model container [2021-08-26 01:34:30,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:29" (2/3) ... [2021-08-26 01:34:30,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5291e16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:34:30, skipping insertion in model container [2021-08-26 01:34:30,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:30" (3/3) ... [2021-08-26 01:34:30,060 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0740.c [2021-08-26 01:34:30,063 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:34:30,063 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:34:30,098 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:34:30,125 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:34:30,126 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:34:30,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:30,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 01:34:30,138 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:34:30,139 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:34:30,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:34:30,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:34:30,143 INFO L82 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2021-08-26 01:34:30,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:34:30,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896859359] [2021-08-26 01:34:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:34:30,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:34:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:34:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:30,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:34:30,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896859359] [2021-08-26 01:34:30,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896859359] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:34:30,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:34:30,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 01:34:30,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664234482] [2021-08-26 01:34:30,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:34:30,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:34:30,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:34:30,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:34:30,280 INFO L87 Difference]: Start difference. First operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:34:30,301 INFO L93 Difference]: Finished difference Result 96 states and 152 transitions. [2021-08-26 01:34:30,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:34:30,302 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-26 01:34:30,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:34:30,308 INFO L225 Difference]: With dead ends: 96 [2021-08-26 01:34:30,308 INFO L226 Difference]: Without dead ends: 46 [2021-08-26 01:34:30,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:34:30,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-08-26 01:34:30,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-08-26 01:34:30,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 45 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2021-08-26 01:34:30,344 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2021-08-26 01:34:30,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:34:30,345 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2021-08-26 01:34:30,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:30,345 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2021-08-26 01:34:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 01:34:30,346 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:34:30,346 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:34:30,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 01:34:30,347 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:34:30,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:34:30,350 INFO L82 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2021-08-26 01:34:30,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:34:30,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570254950] [2021-08-26 01:34:30,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:34:30,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:34:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:34:30,402 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 01:34:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:34:30,455 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 01:34:30,455 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 01:34:30,457 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:34:30,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 01:34:30,462 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:34:30,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:34:30 BoogieIcfgContainer [2021-08-26 01:34:30,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:34:30,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:34:30,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:34:30,479 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:34:30,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:30" (3/4) ... [2021-08-26 01:34:30,481 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:34:30,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:34:30,483 INFO L168 Benchmark]: Toolchain (without parser) took 1212.00 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 37.7 MB in the beginning and 38.5 MB in the end (delta: -738.4 kB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:30,483 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory was 41.1 MB in the beginning and 41.1 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:34:30,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.27 ms. Allocated memory is still 58.7 MB. Free memory was 37.6 MB in the beginning and 39.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:30,484 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.01 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 37.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:34:30,485 INFO L168 Benchmark]: Boogie Preprocessor took 55.98 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 35.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:30,485 INFO L168 Benchmark]: RCFGBuilder took 440.35 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.3 MB in the beginning and 43.3 MB in the end (delta: -7.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:30,486 INFO L168 Benchmark]: TraceAbstraction took 422.63 ms. Allocated memory is still 77.6 MB. Free memory was 43.0 MB in the beginning and 38.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:30,486 INFO L168 Benchmark]: Witness Printer took 2.94 ms. Allocated memory is still 77.6 MB. Free memory was 38.8 MB in the beginning and 38.5 MB in the end (delta: 393.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:30,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory was 41.1 MB in the beginning and 41.1 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.27 ms. Allocated memory is still 58.7 MB. Free memory was 37.6 MB in the beginning and 39.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.01 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 37.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.98 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 35.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 440.35 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.3 MB in the beginning and 43.3 MB in the end (delta: -7.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 422.63 ms. Allocated memory is still 77.6 MB. Free memory was 43.0 MB in the beginning and 38.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.94 ms. Allocated memory is still 77.6 MB. Free memory was 38.8 MB in the beginning and 38.5 MB in the end (delta: 393.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 146]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 132, overapproximation of someBinaryArithmeticDOUBLEoperation at line 35, overapproximation of bitwiseAnd at line 34. Possible FailurePath: [L19] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L141] double x = -1.0 / 0.0; [L22] double z; [L23] __int32_t sign = 0x80000000; [L24] __uint32_t r, t1, s1, ix1, q1; [L25] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (ix0) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (ix1) = ew_u.parts.lsw [L34] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L35] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L142] double res = __ieee754_sqrt(x); [L132] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L145] COND TRUE !isnan_double(res) [L146] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 363.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 6.5ms, AutomataDifference: 42.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 68 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 23.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.7ms SsaConstructionTime, 59.8ms SatisfiabilityAnalysisTime, 49.4ms InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 01:34:30,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:34:32,177 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-08-26 01:34:32,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:34:32,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:34:32,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:34:32,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:34:32,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:34:32,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:34:32,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:34:32,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:34:32,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:34:32,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:34:32,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:34:32,265 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:34:32,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:34:32,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:34:32,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:34:32,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:34:32,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:34:32,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:34:32,295 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:34:32,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:34:32,296 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:34:32,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:34:32,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:34:32,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:34:32,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:34:32,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:34:32,297 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:34:32,297 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:34:32,297 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:34:32,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:34:32,298 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:34:32,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:34:32,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:34:32,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:34:32,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:34:32,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:34:32,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:34:32,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:34:32,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:34:32,299 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:34:32,299 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:34:32,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:34:32,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:34:32,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:34:32,300 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 755a3cc6a0c274616c745647082171c18148354d [2021-08-26 01:34:32,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:34:32,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:34:32,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:34:32,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:34:32,596 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:34:32,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0740.c [2021-08-26 01:34:32,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a9c625a/9916f0f968b7441fa86f355f26fa33ff/FLAGea3ee1c96 [2021-08-26 01:34:32,996 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:34:32,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0740.c [2021-08-26 01:34:33,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a9c625a/9916f0f968b7441fa86f355f26fa33ff/FLAGea3ee1c96 [2021-08-26 01:34:33,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a9c625a/9916f0f968b7441fa86f355f26fa33ff [2021-08-26 01:34:33,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:34:33,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:34:33,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:34:33,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:34:33,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:34:33,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b4ad71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33, skipping insertion in model container [2021-08-26 01:34:33,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:34:33,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:34:33,187 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0740.c[3071,3084] [2021-08-26 01:34:33,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:34:33,212 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:34:33,302 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0740.c[3071,3084] [2021-08-26 01:34:33,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:34:33,320 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:34:33,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33 WrapperNode [2021-08-26 01:34:33,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:34:33,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:34:33,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:34:33,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:34:33,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:34:33,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:34:33,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:34:33,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:34:33,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:34:33,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:34:33,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:34:33,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:34:33,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (1/1) ... [2021-08-26 01:34:33,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:34:33,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:34:33,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:34:33,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:34:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-26 01:34:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-26 01:34:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:34:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:34:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 01:34:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:34:33,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:34:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 01:34:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:34:35,691 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:34:35,696 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-26 01:34:35,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:35 BoogieIcfgContainer [2021-08-26 01:34:35,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:34:35,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:34:35,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:34:35,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:34:35,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:34:33" (1/3) ... [2021-08-26 01:34:35,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105297d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:34:35, skipping insertion in model container [2021-08-26 01:34:35,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:33" (2/3) ... [2021-08-26 01:34:35,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105297d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:34:35, skipping insertion in model container [2021-08-26 01:34:35,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:35" (3/3) ... [2021-08-26 01:34:35,704 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0740.c [2021-08-26 01:34:35,707 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:34:35,707 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:34:35,741 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:34:35,746 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:34:35,746 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:34:35,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:35,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 01:34:35,759 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:34:35,759 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:34:35,759 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:34:35,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:34:35,764 INFO L82 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2021-08-26 01:34:35,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:34:35,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676407695] [2021-08-26 01:34:35,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:34:35,781 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:34:35,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:34:35,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:34:35,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 01:34:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:34:36,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:34:36,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:34:36,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:36,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:34:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:36,232 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:34:36,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676407695] [2021-08-26 01:34:36,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676407695] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:34:36,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:34:36,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:34:36,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535877741] [2021-08-26 01:34:36,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:34:36,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:34:36,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:34:36,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:34:36,246 INFO L87 Difference]: Start difference. First operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:36,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:34:36,259 INFO L93 Difference]: Finished difference Result 96 states and 152 transitions. [2021-08-26 01:34:36,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:34:36,260 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-26 01:34:36,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:34:36,269 INFO L225 Difference]: With dead ends: 96 [2021-08-26 01:34:36,269 INFO L226 Difference]: Without dead ends: 46 [2021-08-26 01:34:36,271 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:34:36,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-08-26 01:34:36,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-08-26 01:34:36,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 45 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:36,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2021-08-26 01:34:36,293 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2021-08-26 01:34:36,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:34:36,293 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2021-08-26 01:34:36,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:36,294 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2021-08-26 01:34:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 01:34:36,294 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:34:36,294 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:34:36,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-26 01:34:36,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:34:36,497 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:34:36,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:34:36,498 INFO L82 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2021-08-26 01:34:36,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:34:36,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956738000] [2021-08-26 01:34:36,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:34:36,499 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:34:36,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:34:36,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:34:36,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 01:34:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:34:36,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-26 01:34:36,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:34:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:37,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:34:41,982 WARN L838 $PredicateComparison]: unable to prove that (= (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_sqrt_~x c_ULTIMATE.start___ieee754_sqrt_~x) c_ULTIMATE.start___ieee754_sqrt_~x)) is different from false [2021-08-26 01:34:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:48,639 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:34:48,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956738000] [2021-08-26 01:34:48,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956738000] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:34:48,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:34:48,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-26 01:34:48,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320886836] [2021-08-26 01:34:48,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 01:34:48,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:34:48,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 01:34:48,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2021-08-26 01:34:48,641 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:50,740 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start___ieee754_sqrt_~x (fp.div c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (_ +zero 11 53))) (= (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_sqrt_~x c_ULTIMATE.start___ieee754_sqrt_~x) c_ULTIMATE.start___ieee754_sqrt_~x)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-08-26 01:34:54,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:34:54,698 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2021-08-26 01:34:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 01:34:54,699 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-08-26 01:34:54,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:34:54,700 INFO L225 Difference]: With dead ends: 51 [2021-08-26 01:34:54,700 INFO L226 Difference]: Without dead ends: 46 [2021-08-26 01:34:54,701 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6798.3ms TimeCoverageRelationStatistics Valid=35, Invalid=81, Unknown=2, NotChecked=38, Total=156 [2021-08-26 01:34:54,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-08-26 01:34:54,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-08-26 01:34:54,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4) internal successors, (63), 45 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 63 transitions. [2021-08-26 01:34:54,706 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 63 transitions. Word has length 9 [2021-08-26 01:34:54,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:34:54,707 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 63 transitions. [2021-08-26 01:34:54,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:54,707 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 63 transitions. [2021-08-26 01:34:54,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:34:54,713 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:34:54,714 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:34:54,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 01:34:54,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:34:54,929 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:34:54,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:34:54,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1929236654, now seen corresponding path program 1 times [2021-08-26 01:34:54,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:34:54,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774784515] [2021-08-26 01:34:54,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:34:54,931 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:34:54,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:34:54,932 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:34:54,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 01:34:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:34:55,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-26 01:34:55,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:34:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:55,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:34:55,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:55,676 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:34:55,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774784515] [2021-08-26 01:34:55,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774784515] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:34:55,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:34:55,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-26 01:34:55,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82096934] [2021-08-26 01:34:55,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 01:34:55,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:34:55,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 01:34:55,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-26 01:34:55,678 INFO L87 Difference]: Start difference. First operand 46 states and 63 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:55,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:34:55,790 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2021-08-26 01:34:55,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 01:34:55,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-26 01:34:55,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:34:55,791 INFO L225 Difference]: With dead ends: 46 [2021-08-26 01:34:55,791 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 01:34:55,791 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 342.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 01:34:55,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 01:34:55,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 01:34:55,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:55,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 01:34:55,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-08-26 01:34:55,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:34:55,792 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 01:34:55,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:55,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 01:34:55,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 01:34:55,793 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:34:55,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 01:34:56,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:34:56,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 01:34:56,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:34:56,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:34:56,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:34:56,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:34:56,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:34:56,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:34:56,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:34:56,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:34:56,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:34:58,646 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 63) no Hoare annotation was computed. [2021-08-26 01:34:58,646 INFO L857 garLoopResultBuilder]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2021-08-26 01:34:58,647 INFO L857 garLoopResultBuilder]: For program point L60-2(lines 60 63) no Hoare annotation was computed. [2021-08-26 01:34:58,647 INFO L853 garLoopResultBuilder]: At program point L27-2(lines 27 32) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_sqrt_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-26 01:34:58,647 INFO L857 garLoopResultBuilder]: For program point L27-3(lines 21 129) no Hoare annotation was computed. [2021-08-26 01:34:58,647 INFO L857 garLoopResultBuilder]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2021-08-26 01:34:58,647 INFO L853 garLoopResultBuilder]: At program point L52-3(lines 52 53) the Hoare annotation is: false [2021-08-26 01:34:58,647 INFO L857 garLoopResultBuilder]: For program point L52-4(lines 52 53) no Hoare annotation was computed. [2021-08-26 01:34:58,647 INFO L857 garLoopResultBuilder]: For program point L110(lines 110 111) no Hoare annotation was computed. [2021-08-26 01:34:58,648 INFO L857 garLoopResultBuilder]: For program point L110-2(lines 110 111) no Hoare annotation was computed. [2021-08-26 01:34:58,648 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 116) no Hoare annotation was computed. [2021-08-26 01:34:58,648 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 01:34:58,648 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 01:34:58,648 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 120) no Hoare annotation was computed. [2021-08-26 01:34:58,648 INFO L857 garLoopResultBuilder]: For program point L119-2(lines 119 120) no Hoare annotation was computed. [2021-08-26 01:34:58,648 INFO L853 garLoopResultBuilder]: At program point L128(lines 21 129) the Hoare annotation is: (= (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrt_#res|) [2021-08-26 01:34:58,648 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 96) no Hoare annotation was computed. [2021-08-26 01:34:58,649 INFO L857 garLoopResultBuilder]: For program point L87-2(lines 87 96) no Hoare annotation was computed. [2021-08-26 01:34:58,649 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 148) no Hoare annotation was computed. [2021-08-26 01:34:58,649 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 57) no Hoare annotation was computed. [2021-08-26 01:34:58,649 INFO L857 garLoopResultBuilder]: For program point L46-2(lines 46 57) no Hoare annotation was computed. [2021-08-26 01:34:58,649 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 115) no Hoare annotation was computed. [2021-08-26 01:34:58,649 INFO L857 garLoopResultBuilder]: For program point L38(lines 38 43) no Hoare annotation was computed. [2021-08-26 01:34:58,649 INFO L853 garLoopResultBuilder]: At program point L71-2(lines 71 81) the Hoare annotation is: false [2021-08-26 01:34:58,649 INFO L857 garLoopResultBuilder]: For program point L38-2(lines 38 43) no Hoare annotation was computed. [2021-08-26 01:34:58,649 INFO L857 garLoopResultBuilder]: For program point L71-3(lines 71 81) no Hoare annotation was computed. [2021-08-26 01:34:58,649 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-08-26 01:34:58,650 INFO L853 garLoopResultBuilder]: At program point L47-2(lines 47 51) the Hoare annotation is: false [2021-08-26 01:34:58,650 INFO L857 garLoopResultBuilder]: For program point L47-3(lines 47 51) no Hoare annotation was computed. [2021-08-26 01:34:58,650 INFO L857 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed. [2021-08-26 01:34:58,650 INFO L857 garLoopResultBuilder]: For program point L89(lines 89 90) no Hoare annotation was computed. [2021-08-26 01:34:58,650 INFO L857 garLoopResultBuilder]: For program point L122-1(lines 122 127) no Hoare annotation was computed. [2021-08-26 01:34:58,650 INFO L853 garLoopResultBuilder]: At program point L122-2(lines 122 127) the Hoare annotation is: false [2021-08-26 01:34:58,650 INFO L857 garLoopResultBuilder]: For program point L89-2(lines 89 90) no Hoare annotation was computed. [2021-08-26 01:34:58,650 INFO L857 garLoopResultBuilder]: For program point L122-3(lines 122 127) no Hoare annotation was computed. [2021-08-26 01:34:58,651 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 114) no Hoare annotation was computed. [2021-08-26 01:34:58,651 INFO L857 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2021-08-26 01:34:58,651 INFO L857 garLoopResultBuilder]: For program point L73-2(lines 73 77) no Hoare annotation was computed. [2021-08-26 01:34:58,651 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 01:34:58,651 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 146) no Hoare annotation was computed. [2021-08-26 01:34:58,651 INFO L857 garLoopResultBuilder]: For program point L41(lines 41 42) no Hoare annotation was computed. [2021-08-26 01:34:58,651 INFO L853 garLoopResultBuilder]: At program point L132(line 132) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrt_#res|)) [2021-08-26 01:34:58,651 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 01:34:58,652 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-08-26 01:34:58,652 INFO L857 garLoopResultBuilder]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2021-08-26 01:34:58,652 INFO L860 garLoopResultBuilder]: At program point L150(lines 134 151) the Hoare annotation is: true [2021-08-26 01:34:58,652 INFO L853 garLoopResultBuilder]: At program point L84-2(lines 84 100) the Hoare annotation is: false [2021-08-26 01:34:58,652 INFO L857 garLoopResultBuilder]: For program point L84-3(lines 21 129) no Hoare annotation was computed. [2021-08-26 01:34:58,652 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-08-26 01:34:58,655 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:34:58,661 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,662 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,662 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,662 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,662 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,662 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,662 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,662 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,664 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,664 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,664 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,664 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,666 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,668 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:34:58,668 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:34:58,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,668 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:34:58,668 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:34:58,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,670 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,670 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,670 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,670 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,670 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,670 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,670 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:34:58 BoogieIcfgContainer [2021-08-26 01:34:58,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:34:58,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:34:58,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:34:58,671 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:34:58,671 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:35" (3/4) ... [2021-08-26 01:34:58,673 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 01:34:58,680 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-08-26 01:34:58,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-26 01:34:58,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 01:34:58,682 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 01:34:58,696 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-26 01:34:58,696 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result [2021-08-26 01:34:58,697 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result [2021-08-26 01:34:58,716 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 01:34:58,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:34:58,717 INFO L168 Benchmark]: Toolchain (without parser) took 25703.20 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 31.2 MB in the beginning and 34.3 MB in the end (delta: -3.1 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:58,717 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 34.4 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:34:58,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.19 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 30.9 MB in the beginning and 50.6 MB in the end (delta: -19.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:58,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.22 ms. Allocated memory is still 69.2 MB. Free memory was 50.6 MB in the beginning and 48.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:58,718 INFO L168 Benchmark]: Boogie Preprocessor took 53.10 ms. Allocated memory is still 69.2 MB. Free memory was 48.6 MB in the beginning and 46.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:58,719 INFO L168 Benchmark]: RCFGBuilder took 2271.72 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 38.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:58,719 INFO L168 Benchmark]: TraceAbstraction took 22971.08 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 38.1 MB in the beginning and 38.5 MB in the end (delta: -433.7 kB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:58,719 INFO L168 Benchmark]: Witness Printer took 45.26 ms. Allocated memory is still 92.3 MB. Free memory was 38.5 MB in the beginning and 34.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:58,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 34.4 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.19 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 30.9 MB in the beginning and 50.6 MB in the end (delta: -19.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.22 ms. Allocated memory is still 69.2 MB. Free memory was 50.6 MB in the beginning and 48.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.10 ms. Allocated memory is still 69.2 MB. Free memory was 48.6 MB in the beginning and 46.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2271.72 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 38.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22971.08 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 38.1 MB in the beginning and 38.5 MB in the end (delta: -433.7 kB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * Witness Printer took 45.26 ms. Allocated memory is still 92.3 MB. Free memory was 38.5 MB in the beginning and 34.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 146]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22915.8ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 12.2ms, AutomataDifference: 6207.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2634.7ms, InitialAbstractionConstructionTime: 6.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 131 SDtfs, 7 SDslu, 341 SDs, 0 SdLazy, 26 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3629.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 7140.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.3ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 78 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 27.7ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 2600.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 27.9ms SsaConstructionTime, 512.5ms SatisfiabilityAnalysisTime, 12689.8ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 4 QuantifiedInterpolants, 320 SizeOfPredicates, 16 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant [2021-08-26 01:34:58,730 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,730 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,730 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,730 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,730 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,730 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,738 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,738 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,738 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,739 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,739 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,739 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,739 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,739 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,739 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,740 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant [2021-08-26 01:34:58,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:34:58,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:34:58,741 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:34:58,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:34:58,746 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 132]: Loop Invariant [2021-08-26 01:34:58,747 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,749 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,749 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,749 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,749 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,749 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:34:58,751 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: 1bv32 == \result && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result RESULT: Ultimate proved your program to be correct! [2021-08-26 01:34:58,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...